Add cancel button on login screen

[EngiNearEngiFar]

The problem

There is no cancel button on the login page.

When using the main UI with a tablet in kiosk mode, there are no control button, so you are "trapped" on the login screen. There is only the keypad input, but I don't see an option to go back to the overview page.

Your suggestion

Adding an "cancel" button next to the "login" button to go back to main sceen.